Scores of people have been killed and dozens more injured after a truck plowed through a crowd during Bastille Day celebrations in Nice, in what has been called “the worst attack” in the city’s history. The truck driver was killed by police.

“I will reassure all Londoners that today we will be reviewing our own safety measures in light of this attack and that I and the Metropolitan Police Commissioner will do everything possible to keep Londoners safe,” said Khan, PA reports.

The recently elected mayor told Sky News the Metropolitan Police Service is doing an “amazing job” keeping the city safe.

“They regularly review security measures but clearly as the terrorists evolve in the way they try and hurt us we’ve got to evolve how we keep us safe. After Brussels, after Instanbul, after Nice, the police and the security experts will rightly review measures to make sure we’re safe,” he added.

“Our hearts go out to the French people and all those who have lost loved ones or been injured.”

Asked about the safety of British citizens in light of the attack, the PM said security officials are reviewing the situation.

“The threat level in the UK is already at severe, that means a terrorist attack is highly likely. Senior officials today will be reviewing what more we can do to ascertain if there is any further action we need to take, but our security services and our police are ever vigilant.”